Door structure



Feb. 26, 1929.

R. C. STEWART Er AL DOOR STRUCTURE Feb. 26, 1929.

R. C. STEWART ET AL' DOOR STRUCTURE Filed April 9, 1927 3 Sheets-Sheet Lns Patented Feb. 26, 1929.

n 1,103,795 UNITED lSTATESV PATENT OFFICE.

ROSS CLIFF STEWART, F MOUNT ROYAL, AND WILLIAM ALEXANDER DUFF, OF MONTREAL, QUEBEC, CANADA.

DOOR STRUCTURE.

Application led April 9, 1927. Serial No. 182,367.

The invention relates to a as described in the present specification and illustrated in the accompanying drawings that form part of the same.

The invention .consists essentially of the novel features of construction pointed out broadly and speciiically in the claims for novelty following a description containing an explanation in detail of an acceptable form of the invention.

The objects of the invention are to overcome the ditliculties incident to the warping of doors or other dislocation thereof, occurring frequently in swinging doors of a heavy type, in which the weight is often a deterrent factor in effecting a good closure; to increase the stability of the structure and at the same time insure economy in regard to the combined cost of installation and maintenance; to eliminate the disastrous results from leakages in inclement weather in engine houses and warehouses requiring free openings and tight closures to such openings; to produce these doors at a reasonably low cost according to specifications and to dimensions and to standardize the construction in so far as the kind and description of the material and shapes of the parts are concerned; and generally to provide an eicient, economical and durable door.

In the drawings, Figure 1 is a front elevation of the doors and doorway frame.

Figure 2 is an elevation showing the framework of the two doors.

Figure 3 is a cross sectional view through one door and a post on the line 3 3 in Figure 2.

Figure 4t is a cross sectional view through one door and a post on the line 4-4 in Figure 2.

Figure 5 is an enlarged sectional detail showing nailing strips. Y

Figure 6 is a vertical sectional view on the line 6 6 on Figure 2 showing the door and posts.

Figure 7 is an enlarged sectional detail of the wicket door and framework.

Figure 8 is an enlarged detail showing a plan view of the assembled hinge parts.

Figure 9 is an enlarged detail showing the latching mechanism for holding the doors open.

Figure 10 is a detail showing an outline of the doors and adjustable bottom plates.

Figure 11 is a detail showing an outline of door structure,

`plished independently the doors in al sagged position with the bottom plates adjusted.

Like numerals of reference indicate corresponding parts in the various figures.

Referring to the drawings, the doors 15 and 16 form the closures in the doorway formed by the posts 17 and 18 and transverse girder 19. Each door is formed of a rectangular frame in which the vertical I-beams 20 and 21 are welded to the horizontal I- boundary I-beams are filled with wood 26,-

shaped toriit into the channels and extending therebeyond in a flush surface 27 with the outer faces of the I-ilanges.

The spacers 28 formed by the blocks or strips arey mounted on the wood fillings 26, and secured to boundary channels by the bolts 29 and nuts 30.

VThe sheathing 32 is only indirectly attached to the frame and has flush surfaces throughout on either side of the door, being nailed to the nailing strips 31 and 31l and the spacing strip 28. The sheathing is of wood and therefore warping does not ati'ect the metal frame. So far as ordinary breakages are concerned, in this comparatively light sheathing, repairs may be readily accomof the frame as it is not uncommon fora door to receive a knock, especially in engine houses, which puts a hole completely through the door. In such happenings usually both frame and wood break and this necessitates a new door, whereas in this invention, the Wood is fractured only and is readily replaced.

This sheathing or boarding 32 is arranged in exactly the same way on either side of the door, and is flush with the flush surfaces 27, being nailed to the nailing strips 31 and 31Il in the spacing strips 28, thereby forming with the boundary I-beams the outside and inside surfaces of the door, in which it will be seen that these covering surfaces, namely 351 `a bolt having the tions to hang the thesheathing, are of wood, independent in so tar as warping is concerned, ot the metal trame, in tact, really free from said Jframe in so 'tar as ordinary b-r'ealrages-r are concerned, for the comparatively light sheathing .ni-ay in parts be thoroughly dislocated, without aiecting the trame at all, as it is not uncommon for the door to r eeive a lrnoclr, especially in engine houses,y which puts a hole completely through the door, and in the case where trames and wood are worked up together, naturallythe frame goes with the wood, but here wh re they are to all-intents and purpr es separate, the sheathing will be broken as itis the point oi least resistance and can be repaired readily without disturbing the traine-work.

The hinges carrying these doors, and there are preferably three each is termed ot the lugs d3-projecting from the lug bases 34, these lug bases, being welded to the web ot' the L beam 21, one hinge lug being towards the upper end ot the lli-beam 21, another inthe centre thereof and another towards the lower end. Y

These lugs are pierced Jfor the hinge `pins Each of the hinge pins 35 is formed like squared head 36 and the threaded Vend 37, adjusting nut 38, held by the lock nut 39y to its adjusted position.

The hinge pins 35 are mounted in the plates 40, each plate 4() having parallel flanges 41 and 42, the flange 42 being slotted at 43 to form a square hole for the square head 36 ot the hinge pin, the flange 41 having a pin hole 44 throughwhichl the pin entends.

The washer 45 is mounted o-n the pin k35 between the lug 33 and the flange 42 and the washers 46 and 47 are mounted on the pin 35 between the nut 38 and the flange 41, thus by loosening the lock nut 39 the pin can be drawn upwardly by screwing on the nut 38, or downwardly as the case may be, and

this lifts the door or lowers it at that point.

Naturally the three hinges have to be adjusted so as to bring them in cooperating posidoor correctly.

Each door 15 and 16 has its own complement of three hinges, and adjoining doors in engine house work can have a double plate, such as illustrated,with a hinge pin at each end Jfor adjoining doors. Such construction is naturally only. a matter of convenience and may be changed at will to suit the particular installations, in fact various diti'erencesot construction are boundto occur tor the several-uses to which the door may be put.

At the lower end of each door, al slrirting plate 48; is mounted-this plate having the slots 49,-through which the bolts 50 are inserted into and through the door to hold said plate in its adjusted position.

rlhis construction'is very necessary, espeon which is mounted thecia-ily in engine house door structures, where there is liable to be a sagging of a post due to excessive use of certain stalls and where there is sucha. sagging, the whole frame et the door will le over.v slightly, and this makes it necessary to adjust these slrirting plates to bring the bottom thereof on a. level with the concrete ot the flooring, andthat inclines them slightly on the door to which they are held by the said bolts. Naturally the bolts are loosened to adjust the posts oit these slrirtino plates and are then tightened up again.

V The doors in engine houses swing outwa rdly and moet or nearly meet at their outer edges. 'l`heretore thereis bumper post secured in the` concrete flooring, and this bumper post carries two plate latches 52 and 53Apivotally secured on the bolt 54, on sait'. post and are termed to 'fall into the outer channels of the ver icalV beams 20 thereby locking the doors very secu-rely to their open position,` which is very essential' in engine houses,w hen the locomotives are leaving their stalls; Naturally to close the doors the latches are lifted andthe doors simply swung to their closedv positions, where they are held by the locking bar 55 which is pivoted at/56 on one ot therdoors and slides behind the part round @hating bars 57, these bars being secured to the transverse intermediate bars 25 ot the trame-work of the doors.W

In the door 16 a short vertical -beam 58 is introducedv between the intermediate I- bea'm 25 o't' that door and the horizontal I- beam 23 of that door and welded to these transverse beams.-

In the wicket door opening avwood filling 59 is introduced into the. several channels on two sides, and over this iller the wood strips 6() are mounted having the door jamb- 61 formed by reducing the outer side of 'the strip.

These strips 60 are held to the ller and to the channels of the l-beams 20, 23 and 25 by the bolts 62 and nuts 63.

The tour-th side ot the boundingr opening;` is completed by the wooden strip 64 slotted 'tioin the outer side to form a door jainb 65, said strip 64 being held to an end tace in the'short beam 58 by the bolts 66 and nuts 67, said'bolts 66 extending through the I-tlanges of the beam 58, through the filler strips 68 and 69 in the channels of the said I-beam 58 and through the woolen spacer 70 abutting the other end ot' the I--beam 58, the sheathing ot the door being ilush with the strip 64 and nailed to the door frame 71.

ln the operation, these doors swing-'on their hinges, and'i'n order that they may be pertectly true in the hanging, the nuts on the hinge pins are all adjusted to thegreatest nicety, so that no door lug or no plate iange is bearing more than its just share ot the weight oi' the door and in this position each door will swing' truly and perfectly, and its weight be evenly distributed in the doorway frame. Y

It has already beenexplained how the plates are adjusted at the lower ends of the doors, said adjusting only being necessary when the door frame changes by settling, such changes are very slight and almost iniperoeptible, but even so it is necessary to ad just the skirting plates to prevent the doors hitting the sill. In every other respect the doors operate just the saine as the conventional type of engine house doors. The trainee of the doors carry the light sheathing which is so easily repaired or replaced and which contributes to the reductionl of the weight of doors used for such purposes.

lVhat we claiin is l. A door structure, comprising a ineta'l frame formed of I-beains in vertical, horizontal and diagonal arrangement, nailing strips secured in the recesses of said beams and wooden sheathing on the inside and on the outside and secured to said nailing strips and forming inner and'outer coverings supported by said I-beams.

2. A door structure comprising metal Lbeams and hinge pieces Welded together to form a swinging interior and boundary frame supporting wooden blocks and strips bolted thereto, and tongued and grooved Wooden boards secured to said blocks and strips and enclosing said frame on the inside and on the outside and forming therewith the closure.

3. A door structure comprising an I-beain frame in rectangularv sections and having a diagonal I-beain brace in the upper section nailing strips rigidly secured to the several I-beaIns, and sheathing nailed to said strips and closing in thepbeam brace. i

VSigned at Montreal, Canada, this 31st day or" March, 1927. v f

ROSS CLIFF STEWART. VILLIAM ALEXANDER DUFF. 

